Yes, there are likely some PLL Hanna pregnant fanfictions out there. Fanfiction websites are full of various creative takes on characters. You can try searching on popular fanfiction platforms like Archive of Our Own or FanFiction.net.
One possible plot could be Hanna trying to keep her pregnancy a secret from the other Liars because she's afraid of how they'll react. She might struggle with the decision of whether to keep the baby or not, all while dealing with the usual PLL drama.
One idea could be that they face challenges from their families. Maybe Jesse's family has certain expectations for their future and how they'll raise the baby, which causes some tension between them. And Rachel's friends might have different opinions on her pregnancy, adding more drama to the story.
Their friends might be really excited at first. They could throw a baby shower for Hanna and Caleb. For example, Spencer might be super organized and plan every detail of the shower. Emily could be really emotional and offer lots of motherly advice to Hanna even though she doesn't have kids yet.
One possible plot twist could be that they initially think the pregnancy is going smoothly, but then they discover some sort of health issue with the baby. This could lead to a lot of drama and worry for them. They might have to search for the best doctors and deal with difficult decisions.
In some versions of the fanfiction, they discovered Hanna was pregnant, but it depends on the specific storyline the author created. Sometimes it was a surprise twist, while in others it was foreshadowed earlier.
Often, the fanfiction might focus on how Rachel deals with the physical and emotional changes during pregnancy. She could be worried about how it will impact her long - term goals in the law firm. There might be scenarios where she has to prove herself even more to her colleagues to show that her pregnancy won't hold her back.
Mr. Schuester might be included as well. As the teacher and mentor in the Glee club, he could offer guidance to Rachel during this difficult time. He might help her figure out how to balance school, the Glee club, and her pregnancy. Additionally, Mercedes could be a character involved, providing her best - friend - like support to Rachel, and being there for her through all the emotional ups and downs.
Finn is very likely to be involved. If he's the father, he would have a huge role in the story. He'd need to deal with his own feelings about becoming a father so young and how it affects his football and Glee club activities. Quinn could also be involved. She might offer Rachel advice based on her own experience with pregnancy, even though their situations were different. And of course, Mr. Schuester would be there. He'd be like a mentor to Rachel, guiding her through the tough times and making sure she still has a place in the Glee club.
The relationship might face some rough patches too. They could argue about things like where to live, how to raise the baby, etc. However, through these arguments, they learn more about each other and eventually find solutions that work for both of them, which in turn, deepens their relationship in the long run.